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1. (WO2006090411) A PROCESS FOR THE PREPARATION OF N-HENEICOSANE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/090411    International Application No.:    PCT/IN2005/000213
Publication Date: 31.08.2006 International Filing Date: 23.06.2005
Chapter 2 Demand Filed:    18.09.2006    
IPC:
C07C 9/22 (2006.01), C07C 1/22 (2006.01), C07C 45/45 (2006.01)
Applicants: DEFENCE RESEARCH & DEVELOPMENT ORGANISATION [IN/IN]; Ministry of Defence, Govt. of India, West Block-VIII, Wing-1, Sec-1, R.K. Puram, New Delhi 110 066 (IN) (For All Designated States Except US).
GANESAN, Kumaran [IN/IN]; (IN) (For US Only).
MALHOTRA, Ramesh, Chandra [IN/IN]; (IN) (For US Only).
RAO, Ambati, Narasimha [IN/IN]; (IN) (For US Only).
GUPTA, Pradeep, Kumar [IN/IN]; (IN) (For US Only).
JAIN, Asheesh, Kumar; (IN) (For US Only).
PRAKASH, Shri [IN/IN]; (IN) (For US Only).
SEKHAR, Krishnamurthy [IN/IN]; (IN) (For US Only)
Inventors: GANESAN, Kumaran; (IN).
MALHOTRA, Ramesh, Chandra; (IN).
RAO, Ambati, Narasimha; (IN).
GUPTA, Pradeep, Kumar; (IN).
JAIN, Asheesh, Kumar; (IN).
PRAKASH, Shri; (IN).
SEKHAR, Krishnamurthy; (IN)
Agent: SUBRAMANIAM, Hariharan; Subramaniam, Nataraj & Associates, E-556, Greater Kailash-II, New Dehli 110 048 (IN)
Priority Data:
418/DEL/2005 25.02.2005 IN
Title (EN) A PROCESS FOR THE PREPARATION OF N-HENEICOSANE
(FR) PROCEDE DESTINE A LA PREPARATION DU N-HENEICOSANE
Abstract: front page image
(EN)A process for the preparation of n-heneicosane is disclosed. The process comprises (a) reacting 2,4-alkaneanedione with 1-bromooctadecane in absolute ethanol in the presence of 18-crown-6 as catalyst to produce 2-heneicosanone; and (b) reducing said 2-heneicosanone using hydrazine hydrate and potassium hydroxide in ethylene glycol to obtain n-heneicosane.
(FR)L’invention décrit un procédé destiné à la préparation du n-hénéïcosane. Le procédé comprend les étapes consistant à (a) faire réagir une 2,4-alcanedione avec le 1-bromooctadécane dans de l’éthanol absolu en présence de l’éther 18-couronne-6 en tant que catalyseur pour produire la 2-hénéïcosanone ; et (b) réduire ladite 2-hénéïcosanone en utilisant l'hydrazine monohydratée et l'hydroxyde de potassium dans de l’éthylène glycol pour donner le n-hénéïcosane.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)